Finding the Third Proportional to 158,610 and 255,003

Step by Step Solution

1. Step 1: Write the proportion equation
   158,610 : 255,003 = 255,003 : x
2. Step 2: Convert to fraction form
   158,610/255,003 = 255,003/x
3. Step 3: Cross multiply
   158,610x = 255,003 × 255,003
4. Step 4: Simplify right side
   158,610x = 65,026,530,009
5. Step 5: Solve for x
   x = 65,026,530,009/158,610
6. Step 6: Final answer
   x = 409,977.49